If you’re annoyed with the lip sync issue on your LG TV and want to fix this audio delay issue without any loss of quality, I have covered it all in this guide.
If you are using LG WebOS, OLED, or another LG TV model, the sound delay, lip sync issue is what you must be dealing with on them. This is an annoying but quite normal issue with almost all LG TV models.
Although LG provides an option for lip sync and AV sync adjustment, it fails to perfectly sync sound, whether you have an external soundbar or using your gaming consoles like Playstation, Xbox, or PC, the audio delay is what LG users face often.
The issue has been quite annoying and made me rethink my decision to get myself an LG TV.
While I was trying to find a fix through numerous forums and contacting LG customer support, I realized that this is quite common and a huge number of LG TV users are experiencing audio delays and lip-syncing issues.
Even though LG support said that this issue would be resolved in the next software update and told me to keep auto-updates turned on, it was not worth waiting as other LG TV owners who bought their TVs earlier than me were also advised the same and it was not resolved.
After that, I started doing my research and found multiple fixes, and decided to write this guide to help other LG TV users who are experiencing Audio delays and Lip Sync problems.
On LG TVs the Audio lag problem occurs whenever Dolby-based content is being played, regardless of what external device is used. For example, if everything is routed through your LG TV using ARC, then Dolby-based audio will be delayed.
In fact, the audio content is delayed in reverse, so AV Sync doesn’t work or the audio bypass won’t either, and even if AV Sync could work it would just be out of sync for non-Dolby audio content.
So that’s where the internal audio lip-sync and AV adjustment settings don’t work and make it worse.
How To Fix Audio Delay and Lip Sync issues on LG TVs?
If your TV is having trouble with external sources, such as a Soundbar, Audio receivers, or external speakers, there are a couple of fixes you can perform.
Other than external sound and audio receivers, if you are experiencing audio lags on particular Apps or gaming consoles such as Playstation and Xbox, the tweaks are slightly different. I have listed them below as well.
Common Audio Issues on LG TV
- LG TV Sound Delay with AVR / Receiver
- LG TV Audio lag and lip synch issue with Soundbar
- ARC/eARC Dolby Digital lip-sync issue
- Audio Delay/lag issue on Set top box, PS4, apps like netflix etc
Common Fixes for LG TV Audio Issue
- Ensure you have the latest firmware
- Turn AV Sync adjustments to off
- Turn your AVR on before your TV
- Set ARC through HDMI port
- Power Cycle your devices
- Reset your AV settings
- Factory Reset
Fixing LG TV Dolby Digital lip-sync issue
Despite the fact that Dolby Atmos works great with LG OLED TVs, there are occasionally sound delays and lip-sync issues.
LG TVs are prone to AV-sync issues only when using Dolby Digital or Atmos signals, regardless of their source.
For LG TVs, the Dolby lip Sync issue can be fixed by following the steps below that I tested and it did completely fix my LG OLED TV’s sound issue.
- Turn your TV sound output to internal speaker > turn on Dolby Atmos > turn on AI Sound
- Sound output should be HDMI Arc > Auto
- Make sure you are using BITSTREAM instead of PCM as the sound output.
- (It fixed noticeable sync lag on Xbox One X and PC using Dolby Atmos content and YouTube audio sync videos to demonstrate the problem)
- After that, Turn back the TV’s sound output to the internal speaker, then disable Atmos and AI sound
- Reset the sound to HDMI ARC > Change output from Auto to Passthrough, then to PCM, then back to Passthrough
As soon as the content synchronized, the issue was resolved. I confirmed that Atmos was playing on both Xbox One X and PC.
Using the above steps, the lip sync and audio issue were resolved easily, and after that, I did check if it recurred, so I turned off all the devices, turned them back on, and checked, and it was working as it should be.